:root{color-scheme:light;--topbar-height: 56px;--status-height: 56px;--canvas-gap: 12px;--bg: #e7ecf2;--bg-2: #dde4ed;--surface: #f5f7fa;--surface-2: #edf1f6;--surface-3: #e6ebf1;--text: #18232f;--muted: #5b6a7b;--line: #cbd5df;--accent: #2f3c4a;--accent-2: #0f1a24;--chip: #e7edf2;--danger: #ff6b6b;--info: #1f5cd4;--on-accent: #ffffff;--sidebar: #e4e9ef;--sidebar-text: #223140;--sidebar-muted: #5f6d7d;--shadow: 0 12px 28px rgba(20, 35, 50, .08);--shadow-strong: 0 18px 40px rgba(12, 24, 36, .18);--focus: rgba(26, 166, 183, .35)}:root[data-theme=dark]{color-scheme:dark;--topbar-height: 56px;--status-height: 56px;--canvas-gap: 12px;--bg: #2c2c2c;--bg-2: #313131;--surface: #353535;--surface-2: #3a3a3a;--surface-3: #424242;--text: #f9f9f9;--muted: #d8d8d8;--line: #505050;--accent: #e0e0e0;--accent-2: #ffffff;--chip: #353535;--danger: #ff6b6b;--info: #6aa2ff;--on-accent: #0f0f0f;--sidebar: #303030;--sidebar-text: #e9f3fb;--sidebar-muted: #dcdcdc;--shadow: 0 12px 26px rgba(0, 0, 0, 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var(--focus);border-color:var(--accent)}.label{font-size:12px;color:var(--muted)}.row{display:grid;gap:6px}.toggle{display:inline-flex;align-items:center;gap:8px;cursor:pointer}.toggle input{display:none}.toggle span{width:34px;height:18px;background:var(--surface-3);border:1px solid var(--line);position:relative;border-radius:0}.toggle span:after{content:"";width:12px;height:12px;background:var(--accent);position:absolute;top:2px;left:2px;transition:transform .2s ease;border-radius:0}.toggle input:checked+span:after{transform:translate(14px)}.welcome{display:grid;gap:24px;padding:28px 16px 16px;min-height:100%;align-content:start;justify-items:center;font-family:Space Grotesk,IBM Plex Sans,Segoe UI,sans-serif;background:radial-gradient(520px 260px at 88% -10%,rgba(47,60,74,.18),transparent 70%),radial-gradient(420px 220px at 10% 0%,rgba(27,184,116,.08),transparent 70%)}:root[data-theme=dark] .welcome{background:radial-gradient(520px 260px at 88% -10%,rgba(255,255,255,.08),transparent 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8px;text-align:center;width:100%}.welcome-copy{display:grid;justify-items:center;text-align:center}.welcome-logo{display:grid;place-items:center;width:320px;height:120px;justify-self:end}.welcome-logo-img{width:320px;height:120px;object-fit:contain;display:block;transform-origin:center}.welcome-logo-img.is-light{transform:scale(1)}.welcome-logo-img.is-dark{transform:scale(2.18)}.welcome-title{font-size:42px;font-weight:600;letter-spacing:-.02em;display:inline-block}.welcome-title-core{position:relative;display:inline-block;padding-right:18px}.welcome-core-symbol{position:absolute;right:-130px;top:-100px;width:175px;height:175px}.welcome-sub{font-size:15px;color:var(--muted);margin-top:8px;max-width:560px}.welcome-note{font-size:12px;color:var(--muted);margin-top:10px}.welcome-actions{margin-top:16px;display:flex;gap:12px;justify-content:center}.welcome-grid{display:grid;grid-template-columns:1fr 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var(--focus)}.modal-actions,.actions,.bottom-actions{display:inline-flex;gap:8px;justify-content:flex-end}.modal-header-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.modal-options{display:grid;gap:10px;margin-top:12px}.radio-option{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}.dataset-hint{font-size:12px;color:var(--muted);padding-left:22px}.status-log{display:grid;gap:6px;padding:10px 12px;border:1px solid var(--line);background:var(--surface-2);color:var(--text);font-size:12px;max-height:420px;overflow-y:auto;border-radius:0}.status-log-item{border-bottom:1px solid var(--line);padding-bottom:6px}.logger-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.logger-title{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:var(--muted)}.logger-toggle{border:1px solid var(--line);background:var(--surface-2);color:var(--text);font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:6px 10px;border-radius:0;cursor:pointer}.logger-list{display:grid;gap:8px;max-height:320px;overflow-y:auto;padding-right:4px}.logger-groups{display:grid;gap:10px;max-height:320px;overflow-y:auto;padding-right:4px}.logger-group{display:grid;gap:8px}.logger-group-toggle{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;background:var(--surface-2);border:1px solid var(--line);padding:8px 10px;border-radius:0;color:var(--text);cursor:pointer}.logger-group-title{font-size:11px;text-transform:uppercase;letter-spacing:.12em;font-weight:700;color:var(--muted)}.logger-group-caret{width:16px;height:16px;transition:transform .2s ease}.logger-group-caret.open{transform:rotate(180deg)}.logger-group-items{display:grid;gap:8px}.logger-item{display:grid;grid-template-columns:18px 1fr;gap:10px;padding:8px;background:var(--surface-2);border-radius:0;border:1px solid var(--line);cursor:pointer}.logger-name{font-size:12px;font-weight:700;color:var(--text);text-transform:uppercase;letter-spacing:.08em}.logger-meta{font-size:11px;color:var(--muted);display:flex;gap:10px;flex-wrap:wrap}.builder{display:grid;grid-template-rows:auto 1fr auto;gap:10px;height:100%;min-height:0;width:100%}.builder-viewport{background:var(--surface-2);border:1px solid var(--line);border-radius:0;position:relative;min-height:0;height:100%;overflow:hidden;width:100%;box-shadow:inset 0 0 0 1px #ffffff0a,inset 0 0 0 2px #00000059}.builder-viewport.show-grid,.builder-canvas.show-grid .builder-viewport{background-image:radial-gradient(circle,rgba(0,0,0,.25) 1px,transparent 1px);background-size:var(--grid-size, 24px) var(--grid-size, 24px);background-position:var(--grid-origin, 12px) var(--grid-origin, 12px)}:root[data-theme=dark] .builder-viewport{background:#404040}:root[data-theme=dark] .builder-viewport.show-grid,:root[data-theme=dark] .builder-canvas.show-grid .builder-viewport{background-image:radial-gradient(circle,rgba(255,255,255,.18) 1px,transparent 1px)}.builder-viewport:before{content:"";position:absolute;top:12px;right:12px;bottom:12px;left:12px;border:1px solid rgba(0,0,0,.5);pointer-events:none}.pid-right-column-line{position:absolute;top:12px;bottom:126px;right:175px;width:1px;background:#00000080;pointer-events:none}.pid-title-block{position:absolute;right:12px;bottom:12px;width:360px;display:grid;grid-template-columns:1.4fr .6fr .5fr;grid-auto-rows:28px;gap:0;border:1px solid rgba(0,0,0,.6);background:#ffffff05;color:var(--muted);font-size:9px;text-transform:uppercase;letter-spacing:.08em;pointer-events:none}.pid-title-cell{padding:4px 6px;border-right:1px solid rgba(0,0,0,.55);border-bottom:1px solid rgba(0,0,0,.55);display:grid;gap:2px}.pid-title-cell:nth-child(3n){border-right:none}.pid-title-cell.pid-title-span2{grid-column:span 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